Answer:
The t distribution is used, because we have the standard deviation for the sample.
Step-by-step explanation:
When to use the z or the t distribution?
When we have the standard deviation for the population, we use the z distribution.
When we have the standard deviation for the sample, we use the t distribution.
In this question:
We have the standard deviation for the sample, which means that the t distribution is used.
Answer:

Step-by-step explanation:
Let
x-----> the number of pounds of tomatoes Camilla bought
we know that
The equation that represent this situation is equal to

Solve for x



2:10 and 4:20
therfor
1:5
times 5
5:25
answer is 25 minutes
35 = red
35 : 50 = 7 : 10
the ratio is should be 7 out of 10